<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title></title>
	<style type="text/css">
		body{
			background: #000;
		}
		.div{
			width: 300px;
			height: 300px;
			background-color:#fff;
			border-radius: 10%/10%;
		}
		.div div{

		}
	</style>
</head>
<body>
	<div class="div">
		<div id="d1"></div>
		<div id="d1"></div>
		<div id="d1"></div>
		<div id="d1"></div>
		<div id="d1"></div>
		<div id="d1"></div>
	</div>
</body>
</html>